Autofluorescence imaging endoscopy for identification and assessment of inflammatory ulcerative colitis

Figure 3 Comparison of overall mucosal inflammation on white light imaging and the abundance of RGB color components on autofluorescence imaging. A: The green color component corresponds most often with sites of mucosal inflammation in different colonoscopy images (according to Spearman rank correlation coefficient); B: There are significant differences in the green color component values between Mayo endoscopic subscore (MES)-0 and MES-1 (^bP < 0.01), between MES-0 and MES-2 (^bP < 0.01), between MES-0 and MES-3 (^bP < 0.01), between MES-1 and MES-3 (^aP < 0.05), between MES-0 and ≥ MES-2 (^bP < 0.01) and between MES-1 and ≥ MES-2 (^aP < 0.05), but not between MES-1 and MES-2 or between MES-2 and MES-3 (Tukey-Kramer multiple comparison test). WLI: White light imaging.